10000021112 has 32 divisors (see below), whose sum is σ = 19942070400. Its totient is φ = 4684775424.

The previous prime is 10000021111. The next prime is 10000021139. The reversal of 10000021112 is 21112000001.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 10000021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000021111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134537 + ... + 195192.

It is an arithmetic number, because the mean of its divisors is an integer number (623189700).

Almost surely, 2^10000021112 is an apocalyptic number.

It is an amenable number.

10000021112 is a deficient number, since it is larger than the sum of its proper divisors (9942049288).

10000021112 is a wasteful number, since it uses less digits than its factorization.

10000021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329975 (or 329971 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10000021112 its reverse (21112000001), we get a palindrome (31112021113).

The spelling of 10000021112 in words is "ten billion, twenty-one thousand, one hundred twelve".